term1 Definition1term2 Definition2term3 Definition3
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diffusion
movement from high concentration to low concentration
circulatory systems
have circulatory fluid, a set of interconnecting vessels, and a muscular pump (heart). either opened or closed
open circulatory systems
pump blood into a hemocoel with the blood diffusing back to thecirculatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.
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